# SDR QR9R2025091100001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2025
- Submitted: September 11, 2025
- Operation: General aviation
- Filed by: [M1 Support Services, repair station QR9R369D](https://openairdocs.org/faa-repair-station/QR9R369D/m1-support-services.md) (OpenAirDocs)
- Make and model: Bolkms BK117C2
- Aircraft serial: 9123
- Aircraft time: 4,595 hours
- System (JASC): [7412 · Exciter](https://openairdocs.org/jasc/7412)
- Part: Exciter
- Part number: 9550176020
- Part serial: 9641
- Condition: Failed
- Location: Nr 2 Engine
- Stage of operation: TX
- How discovered: C
- Nature of condition: F
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2025091100001

## Discrepancy

ABORTED TAKEOFF FOR #2 ENGINE WOULD NOT START DURING RUNUP. TROUBLESHOOTING REVEALED THE FWD IGNITION EXCITER BOX ON #2 ENGINE TO BE BAD WITH NO SPARK ON IGNITER.  REMOVED AND REPLACED #2 ENGINE IGNITION EXCITER BOX IAW ENGINE MANUAL 74-11-00-900-801-A01.

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